@Anon & LS - I don't think the wives of the Rajahs were buried at Sheepstor. I have read that Ranee Margaret, wife of the Second Rajah died 1936 in London while Ranee Sylvia, wife of the Third Rajah died in 1971 at Barbados.

"SHEEPSTOR, or Shipstor, anciently written Schitestor, or Shittor, is a small village, in the picturesque valley of the little river Mew, or Meavy, on the western side of Dartmoor, near several rocky hills, and the Dartmoor Railway, 7 miles S.E. of Tavistock. Its parish has 127 souls, and 3469 acres of land, partly open moorland, on Ringmoor Down, &c., near the sources of the river Plym.